Rain bombarded New York City and Long Island this week.
Water swamped streets in Brooklyn, Queens, and Long Island.
Flash floods engulfed homes and businesses.
The National Weather Service released warnings.
Power lines collapsed.
Power cuts followed.
Roads transformed into rivers.
Some areas were cut off.
Emergency teams operated all week.
They assisted trapped residents.
Officials warned people not to drive through water.
Rainfall reached levels rarely seen at this time.
More rain could come.
More flooding may follow.